Abstract:
The invention relates to alkoxylated phosphoric acid triesters of formula (I) wherein x, y and z respectively stand for a number between 51 and 200. The alkoxylated phosphoric acid triesters of formula (I) are characterised especially by advantageous thickening properties.
Abstract:
The invention relates to phosphoric acid esters containing A) at least one structural unit derived from substances of constituent a), the substances of constituent a) being selected from orthophosphoric acid and at least one of the derivatives thereof; B) at least one structural unit derived from substances of constituent b), the substances of constituent b) being selected from at least one compound of formula (I) R2—O—(CH2CH2O)U(C3H6O)V(DO)w—H; and C) at least one structural unit derived from substances of constituent c), the substances of constituent c) being selected from at least one polyol which has more than 2 OH groups and can also carry at least one alkoxylate group. The alkoxylate groups are respectively formed from at least one unit selected from CH2CH2O, C3H6O and C4H8O units that can respectively be arranged in a block or in a statistically distributed manner inside the alkoxylate groups. The phosphoric acid esters contain at least two phosphorus atoms per molecule, said phosphorus atoms being bridged by a structural unit derived from the polyols having more than two OH groups or from the polyols having more than two OH groups and carrying at least one of the alkoxylate groups. The phosphoric acid esters according to the invention can be used advantageously for producing cosmetic, pharmaceutical and dermatological compositions.
Abstract:
The invention relates to a method for producing phosphoric acid triesters of formula (I). According to said method, phosphoric acid or a phosphoric acid derivative selected from orthophosphoric acid, tetraphosphoric decaoxide and polyphosphoric acid is reacted with alkoxylated alcohols of formulae (II) R1—(OA1)x-OH, (Ill) R2—(OA2)y-OH, and (IV) R3—(OA3)z-OH, in the molar ratio phosphoric acid or phosphoric acid derivative to alkoxylated alcohol of 1:2.5 to 1:3.3, at between 200 and 240° C.
Abstract:
Nanoparticles are claimed which consist of 50-99.99% by weight of alumina and 0.01-50% by weight of metal oxide of elements of main group I and II of the Periodic Table. These nanoparticles are obtained by drying a suspension of aluminum chlorohydrate, oxide formers and, if desired, crystallization nuclei, followed by calcining and comminution of the resultant agglomerates.
Abstract:
The present invention relates to leave-on compositions for personal care comprising trimethylsilylalkylsilsesquioxanes, particularly trimethylsilyl-n-octylsilsesquioxanes (Caprylyl Trimethicones). Said trimethylsilylalkylsilsesquioxanes are especially useful in formulating emulsions.
Abstract:
Cosmetic or pharmaceutical compositions comprising one or more substituted aminopolyorganosiloxanes (SH) with substituted amino groups which are bonded to silicon atoms of the polysiloxane basic structure via alkylene bridges or mono- or oligo(alkylenamino)alkylene bridges, where the amino groups present in the aminopolyorganosiloxanes (SH) are substituted at least partially by a radical of the formula (ε) T-CH2—CHOH—CH2— (ε), in which T is the radical of a surfactant monoalcohol polyglycol ether with emulsifier character, the amino groups present in the aminopolyorganosiloxanes (SH) are substituted in the average ratio of at least 1.5 radicals of the formula (ε) per Si-bonded aminoalkyl group or amino-mono- or -oligo-(alkylenamino)-alkyl group, and present amino groups are, if appropriate, acylated and/or alkylated and/or benzylated and/or protonated at least partially to give amide groups, are described.
Abstract:
The invention relates to a method for producing phosphoric acid triesters of formula (I). According to said method, phosphoric acid or a phosphoric acid derivative selected from orthophosphoric acid, tetraphosphoric decaoxide and polyphosphoric acid is reacted with alkoxylated alcohols of formulae (II) R1—(OA1)x-OH, (III) R2—(OA2)y-OH, and (IV) R3—(OA3)Z-OH, in the molar ratio phosphoric acid or phosphoric acid derivative to alkoxylated alcohol of 1:2.5 to 1:3.3, at between 200 and 240° C.
Abstract:
Cosmetic or dermatological preparations which contain modified or unmodified nanocrystalline a-alumina having particle sizes of from 10 to 100 nm and d50 values of from 30 to 60 nm are described.
Abstract:
The invention relates to clear, liquid preservatives, which contain a) one or several 1-hydroxy-4-methyl-6-alkyl-2(1H)-pyridones and/or one or several salts thereof. wherein alkyl represents a linear, branched or cyclic alkyl group having 1-12 carbon atoms, and b) one or several alcohols containing one or several aromatic groups.